Location: US-75 and SH-3, Coal Cty A few miles north of Coalgate, US-75 will split from SH-3 to head north Location: US-75 and SH-3, Coal Cty Follow 3 West to Ada and 75 North to Calvin Location: US-75 and OK-3, Coal Cty Turn right for 75 North, stay straight for SH-3 which heads all the … Continue reading U.S. Route 75, OK-31 to OK-3